Pipe-wrench



A. PART |N. PIPE WRENCH.

APPLICATION FILED APR- 2, 1920.

1,359,421 Patented Nov. '16; 1920.

' w N m & Allverl Parfln INVENTOR ATTORNEY WITNESsE 5 UNETED STATES PATENT @FFECE.

ALBERT PARTIN, F TALKEETNA, VIA ANCHORAGE, TERRITORY OF ALASKA.

PIPE-WRENCH.

To all whom it may concern:

Be it known that I, ALBERT PARTIN, a citizen of the Territory of Alaska, residing at Talkeetna, via Anchorage, Third Division, Territory of Alaska, have invented .new and useful Improvements in Pipei i renches, of which the following is a speci fication.

The object of my present invention is the provision of a pipe.wrench of the swinginghead type in which the parts are so constructed and relatively arranged that a short swinging movement is all that is necessary to cause the wrench to take a strong hold on the pipe with which it is engaged, this being advantageous inasmuch as it permits of the jaw portion of the wrench being wielded or manipulated to advantage in a restricted space as is frequently necessary.

To the attainment of the foregoing, the invention consists in the improvement as hereinafter described and definitely claimed.

In the accompanying drawings hereby made a part hereof:

Figure l is a side elevation of the wrench constituting the best practical. embodiment of my invention of which I am cognizant.

Fig. 2 is a section taken in the plane indicated by the line 2-2 of Fig.1, looking in the direction indicated by the arrow.

Fig. 3 is a section taken in the plane indicated by the line 3-3 of Fig. 1, looking in the opposite direction, as indicated by arrow.

Figs. 4 and 5 are elevations illustrative of the opposite edges of the wrench.

Similar numerals of reference designate corresponding parts in all of the views of the drawings.

Among other elements my novel wrench comprises a swinging T-head 1 which is provided with jaws 2 and 3, toothed at their inner sides, as shown, and disposed at opposite sides of a shank l. The said shank a is provided with shoulders 5 and a longitudinal central portion or tongue 6 of reduced thickness.

In addition to the T-head 1, the wrench comprises a member that is formed in one piece and includes a handle 7, spaced standards 8 that project endwise from the inner end of the handle 7 and have their ends beveled, as indicated by 9, and lateral portions 10 and 11 that reach in opposite directions from the edges of the handle 7 adjacent to Specification of Letters Tratent.

Patented Nov. 16, 1920.

Application filed April 2, 1920. Serial No. 370,768.

the inner ends of the standards 8. The lateral portion 10 is toothed at its inner side and is designed to serve as a jaw in conjunction with the jaw 2 opposite it in the gripof pipes of large diameter. The laterai portion 11 extends outwardly from the handle 7 and then extends in parallel relation to the adjacent edges of the standards 8, and 1s provided at its free end with teeth 13, whereby it is adapted to serve with the git-her aw 2 in the gripping of smaller pipes. i he longitudinal central portion or tongue on the shank e of the swinging T-head l is interposed between the standards 8 of the handle member, and is pivotally and strongly connected to said standards 8 through the medium of a pintle 14C.

in the practical use of my novel wrench,

when a pipe of small diameter is to be engaged, it issimply necessary for the operator to manipulate the wrench so that the aw 2 of the T-head that is adjacent the jaw 11, is swung in a direction away froms aid jaw 11. The wrench is then applied to the pipe, and then when pressure is exerted on .ille handle 7 to move the said jaw 11 toward last-mentioned 2, it will be observed ast the pipe will be gripped between the l1 and 3, and the greater the pressure on the handle 7, the stronger will be the grip that is taken on the pipe, with the result that there is no liability of the wrench slipping about a pipe after the latter is once properly engaged by the wrench. Manifestly the ends of the standards 8 in cooperation with the shoulders 5 on the shank 4.- will prevent the mentioned jaw 3 from ever swinging into contact with the jaw 11.

vVhen the operator desires to engage the jaw 10 and the opposite jaw 2 with a pipe of large diameter, it is simply necessary for the operator to manipulate the wrench so that the said 2 is moved in a direction away from the jaw 10. Then when the wrench is placed with the pipe to be engaged between the jaw 10 and the said jaw 52, and pressure is exerted on the handle 7 in a direction to move the jaw 10 toward the said jaw 2, the wrench will take secure hold of the pipe, and in consequence the pipe will be turned about its axis in the direction in which the wrench handle is moved.

An important feature of my invention resides in the arrangement of the center of movement of the T-head 1 at a point out wardly beyond the point at which the jaws 10 and ll are joined to the handle 7. This feature will be appreciated as practically advantageous, when it is stated that it brings about the arrangement of all of the jaws in a small compass, so that the wrench may be expeditiously and easily applied in a restricted space and as conveniently manipulated or wielded in said space. It is also advantageous because it maKes of the wrench a one-hand wrenchi. 0., a wrench that maybe held and'worlied in one hand of the operator without entailing assistance from the other hand of the operator either in the application or the operation of the wrench.

It will -further be appreciated that my novel wench is simple and inexpensive in construction and in general is well adapted to withstand the rough usage to which pipe wrenches are ordinarily subjected.

Having described my invention, what I claim and'desire to secure by Letters-Pat ent, is

l. A pipe wrench comprising a T-head having jaws toothed at their inner sides and also having between said jaws a shank on which is a portion or tongue of reduced thickness and shoulders adjacent to the same, in combination with a one-piece mem ber includin a handle, spaced and parallel standards reaching forwardly from the forward end of the handle and provided with beveled ends opposed to said shoulders of the shank a jaw reaching laterally from one edge of the handle at the bases of the standards and toothed at its inner side, and a jaw reaching laterally from the opposite edge of the handle and extending in parallel relation to the adjacent edges of the standards and toothed at its forward end; said standards receiving the tongue of the T-head, and a transverse pintl'e pivotally connecting the said tongue to the standards. 2. A pipe wrench comprising a T-head having a shank and toothed jaws at opposite sides of the shank, in combination with a member having jaws reaching laterally in opposite directions therefrom at an intermediate point in its length and opposed to the jaws of the T-head and also having a longitudinal portion extending forwardly beyond the point of junction of its jaws and pivotally connected to the shank of the T- head, whereby the center of movement oi the T-head or of the handle member is positioned within the group of jaws and spaced from all jaws.

A pipe wrench comprising a T-head having a shank and toothed jaws at opposite sides of the shank, in combination with a member having jaws reaching laterally in opposite directions therefrom at an intermediate point in its length and opposed to the jaws of the T-head and also hating a longitudinal portion extending forwardly beyond the point of junction of its jaws and pivotally connected to the shank of the -T- head. whereby the center ofmovement of the T-head and of the handle member is positioned within the group of jaws; one of the jaws of the said member also reaching forwardly in parallel and spaced relation to the longitudinal forwardly extending portion of the member. a

In testimony whereof I my signature.

ALBERT PARTIN. 

